High corrosion-resistant Delta Protect coat introduced for ultra-strong hexagon socket bolts of strength class 14.9.
"I wanted a bolt like this." In response to our customers' strong demand, we developed an "ultra-strength" hex socket bolt that exceeds standard specifications, classified as 14.9. To provide this ultra-strength bolt with high corrosion resistance, we adopted the "Delta Protect Coat." This remarkable product boasts a tensile strength of 1,400 N/mm² while exceeding 2,000 hours of salt spray resistance.
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basic information
A jointly developed product with the first-class manufacturer, Kyokuto Seisakusho Co., Ltd., which boasts high technical capabilities. This groundbreaking product features hexagon socket bolts classified as strength category "14.9" with a thin film anti-corrosion coating called 'Delta Protect.' ◆◇Features◇◆ 1. High anti-corrosion performance due to cathodic sacrificial protection 2. High permeability with no liquid pooling in the hexagon socket 3. Does not cause hydrogen embrittlement 4. Thin and uniform coating ◆◇Mechanical Properties◇◆ Material: KNDS4 (Kobe Steel, Ltd.) high-strength bolt steel Hardness: HRC44~50 Tensile Strength: 1,400N/mm² Elongation: 9% Dimension Standard: JISB1176 (excluding neck radius) Thread Type: ISO5855-1 MJ thread (aerospace use) Thread Grade: Based on ISO5855-1 *After treatment, the maximum allowable tolerance for the thread is 4h. Surface Treatment: Delta Protect Base Coat: "KL100 x 2 coats" Top Coat: "VH300 x 1 coat" For stock dimensions and details, please refer to the catalog.
Price information
Prices may vary depending on quantity and size, so please feel free to contact us.
Delivery Time
※The delivery date may vary depending on the quantity, so please contact us for more details.
Applications/Examples of results
Improvement of maintenance cycles and for fixing molds, etc. Replacement of existing bolts in equipment, etc., as a countermeasure against bolt breakage, etc. Compact design that achieves weight reduction and miniaturization.
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Company information
Yura Sangyo's Special Sales Department aims to contribute to the screw demand industry by ensuring that we can deliver "better screws" at "more reasonable prices" and "just in time" through our wholesale operations of screws and related products. We strive to perfect our various business activities to achieve this goal. 1. Abundant inventory: Over 50,000 items with more than 10,000 tons of stock. 2. Wide range of suppliers: Partnering with 250 domestic and international suppliers, including SPS Unbrako, which specializes in the aerospace sector. 3. Robust immediate delivery system: Quickly responding to customer needs from small lot orders. 4. Reliable quality control: Conducting thorough inspections and traceability from product arrival to delivery in a separate department from the wholesale division, we also handle engineering fasteners (bolts and nuts) based on customer advice and needs. Our product lineup and business details are as follows. We primarily focus on made-to-order production and also handle some branded products from the wholesale division.